MFC一个父对话框，多个子对话框 [英] MFC one parent dialog, multiple child dialogs

问题描述

我想构建一个MFC应用程序，一个主对话框，所有其他对话框是这个主对话框的子对象（并嵌入其中）。

现在，我可以在主对话框中嵌入第一个子对象，但我想传递到下一个对话框（注意打开的对话框的顺序是随机的） ，所以我需要隐藏第一个对话框并显示另一个。要知道当前显示的对话框并隐藏它，我试着使用 CDialog 变量来存储当前打开的对话框，但我得到一个 CObject :: operator ='：无法访问在'CObject'类中声明的私有成员错误。

隐藏和显示对话框游戏？

编辑：我可以存储对话框的一些ID并使用它来完成此任务吗？

解决

首先，我存储最后打开的对话框的IDD

  m_dlgStartPage.Create（CStartPageDlg :: IDD，this）; 
 m_openedWin.nDialogIDD = m_dlgStartPage.IDD; 
 m_dlgStartPage.ShowWindow（SW_SHOW）; 
  

然后，当需要显示一个新对话框时， code> nIDD 是待显示对话框的IDD）：

AfxGetApp m_pMainWnd-> SendMessage（WM_COMMAND_CHANGE_WINDOW，nIDD，0）;

最后，在我的主对话框中，我解析所有的子对话框检查 m_openedWin.nDialogIDD 是否与每个对话框的IDD匹配，所以我可以隐藏它。之后，我再次解析所有的chid对话框，并使用发送的消息中的 nIDD 显示正确的对话框。

我不喜欢这种方法，因为所有的解析和发送消息到主对话框的类，所以如果任何人有一个更好的主意或方法，请张贴。

I want to build a MFC application, with one main dialog, and all the other dialogs are child of this main dialog (and embedded in it).

Now, i was able to embed the first child in the main dialog, but i want to pass to the next dialog (note that the order of opened dialogs is random), so i need to hide the first dialog and show another. To know which dialog is shown at the moment and hide it, i've tried using a CDialog variable to store the current opened dialog, but i get a CObject::operator =' : cannot access private member declared in class 'CObject' error.

Is there another way to do this "hide and show dialogs" game?

EDIT: Could i store some ID of the dialogs and use it to acomplish this task?

解决方案

So i managed to accomplish this task using classes IDDs.

First, i store the last opened dialog's IDD

m_dlgStartPage.Create(CStartPageDlg::IDD, this);
m_openedWin.nDialogIDD = m_dlgStartPage.IDD;
m_dlgStartPage.ShowWindow(SW_SHOW);

Then, when a new dialog needs to be shown, i send a message to my main dialog (nIDD is the IDD of pending dialog to show):

AfxGetApp()->m_pMainWnd->SendMessage(WM_COMMAND_CHANGE_WINDOW, nIDD, 0);

And last, in my main dialog, i parse all the child dialogs and check if m_openedWin.nDialogIDD matches with each dialog's IDD, so i can hide it. After this, i parse once again all the chid dialogs and use the nIDD from the sent message to show the correct one.

I don't really like this approach, because of all the parsing and sent messages to the main dialog's class, so if anyone has a better idea or method, please post it.

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